New worm increasing in menace

Users should be on the alert for a new worm which is growing in numbers, security firm Symantec warned today.

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By  Peter Branton Published  June 3, 2004

Users should be on the alert for a new worm which is growing in numbers, security firm Symantec warned today. The company has upgraded W32.Korgo.F from a Level 2 threat to Level 3 on its Security Response five-point scale, claiming an increase in submissions overnight. “W32.Korgo.F includes backdoor functionality that could leave systems open to unauthorised access,” said Alfred Huger, senior director, Symantec Security Response, in an advisory. “This backdoor functionality could result in a loss of confidential data and may also compromise security settings. This threat is another strong example of why it is critical for computer users to be diligent in applying security patches, keeping virus definitions updated, and following best practices.” W32.Korgo.F is a worm that attempts to propagate by exploiting a previously announced vulnerability in Microsoft’s Windows operating systems. The worm will listen on TCP ports 113 and 3067 and could potentially open backdoors on those ports, Symantec is warning. Users should apply the patch issued by Microsoft as soon as possible, and update their antivirus definitions, Symantec urges. The company also recommends that users check their firewall is configured to block ports 113 and 3067.

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